bio exam 2
問題一覧
1
if a protein is half way thru being made by a ribosome, what is the partially made protein covalently bonded to?
a tRNA in either the P or A site
2
the amount of DNA per cell of each species is highly correlated with the relative complexity of that species
false
3
how is translation of a protein ended
a protein release factor binds in the A site of the ribosome
4
why is histone positively charged
because it has to bind to negatively charged DNA
5
loops of chromatin are attached to what structure
protein scaffold
6
during proofreading of DNA, which activity of DNA polymerase is important in correcting its own mistakes
3’ to 5’ exonuclease
7
what is bound to a charged tRNA
an amino acid
8
during repair process of a tymine dimer, after a nick(single strand break) is made either side of the damage, what kind of protein is important in separating the single strand containing the dimer away from the DNA under repair?
helicase
9
what happens at the +1 site of genes
transcription of RNA begins
10
which of these is a good description of a nucleosome
in eukaryotes there is one for every 200bp of DNA in chromatin
11
what leaves the ribosome from the E site during translation
uncharged tRNA
問題一覧
1
if a protein is half way thru being made by a ribosome, what is the partially made protein covalently bonded to?
a tRNA in either the P or A site
2
the amount of DNA per cell of each species is highly correlated with the relative complexity of that species
false
3
how is translation of a protein ended
a protein release factor binds in the A site of the ribosome
4
why is histone positively charged
because it has to bind to negatively charged DNA
5
loops of chromatin are attached to what structure
protein scaffold
6
during proofreading of DNA, which activity of DNA polymerase is important in correcting its own mistakes
3’ to 5’ exonuclease
7
what is bound to a charged tRNA
an amino acid
8
during repair process of a tymine dimer, after a nick(single strand break) is made either side of the damage, what kind of protein is important in separating the single strand containing the dimer away from the DNA under repair?
helicase
9
what happens at the +1 site of genes
transcription of RNA begins
10
which of these is a good description of a nucleosome
in eukaryotes there is one for every 200bp of DNA in chromatin
11
what leaves the ribosome from the E site during translation
uncharged tRNA